will be that the country can't afford four more years of the obama administration and president obama's message will be that the country is far better off with his policies than it would have otherwise been and he needs four more years to finish the job. ish th final prep rigs are under way in denver for the first presidential debate. the showdown between president obama and governor mitt romney will take place at the university of denver. now, unlike debates in the past, this one will be a little different. the 90 minute format will be divided into six 15-minute discussions. ors believe that will help views are to get a good sense of the candidates' views on key issue. one political analyst says this is important since both men have something to prove. >> the public wants to see if mitt romney is an acceptable alternative. they sort of know the president. he is the devil they know. mitt romney is the devil they don't. they haven't made up their mind about him one way or the other right now. >> reporter: polls do suggest that there are few undecide voters but political analyst dos say say stron